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A karyotype of the silky short-tailed bat<br />

(Carollia brevicauda [Schinz, 1821], Chiroptera:<br />

Phyllostomidae) from the Colombian Andes<br />

THERYA, agosto, 2014<br />

Vol.5(2): 559-566<br />

DOI: 10.12933/<strong>therya</strong>-14-145<br />

Un cariotipo del murciélago sedoso de<br />

cola corta (Carollia brevicauda [Schinz, 1821],<br />

Chiroptera: Phyllostomidae) de los andes de<br />

Colombia<br />

Elkin A. Noguera-Urbano 1, 2* y Silvia Muñoz-Montenegro 2<br />

Introduction: The only record of a Carollia brevicauda (Schinz, 1821) karyotype in Colombia to date was<br />

described from a single specimen collected from Leticia (department of Amazonas, Colombia). In this study,<br />

we offer a description of the karyotype of a female specimen of C. brevicauda, collected at 1,647 m in the<br />

locality of Chachagüi, in the Colombian Andes.<br />

Methodology: The karyotype was obtained from bone marrow and conventional staining with Giemsa. We<br />

describe the chromosomal number, fundamental number and the karyotypic pattern. We compared the<br />

karyotype with others proposed for the species and several closely related species.<br />

Results: This study increased the number of karyotypes reported for Colombian populations of C. brevicauda.<br />

The karyotype of C. brevicauda described in this paper agrees with karyotypes of other populations with<br />

2n = 20 and FN = 36. The karyotypic pattern includes one sexual pair, two subtelocentrics pairs, two<br />

submetacentrics pairs and five metacentrics pairs.<br />

Discussion: The pattern recorded herein is different to other reported for the species and the genus. The<br />

descriptions of variations in chromosomal morphology in C. brevicauda are incomplete, but it is possible<br />

that the different karyotypic patterns are indicators of polymorphism within the genus. Other studies are<br />

necessary to describe the yet undescribed karyotypes of C. manu and C. monohernandezi and to obtain<br />

additional evidence for the phylogenetic reconstructions of Carollia.<br />

Key words: bat; chromosomes; genetics; genotype; mammal; variation.<br />

Resumen<br />

Se reporta el cariotipo de un ejemplar hembra C. brevicauda capturado en el municipio<br />

de Chachagüi, Colombia. El cariotipo fue obtenido a partir de médula ósea con tinción<br />

convencional de Giemsa. Con este reporte se incrementó a dos el número de reportes<br />

citogenéticos de C. brevicauda para poblaciones de Colombia. El cariotipo de C.<br />

brevicauda analizado presentó 2n = 20 y NF = 36, mientras que la fórmula cromosómica<br />

del ejemplar esta compuesta por un par sexual, dos pares subtelocéntricos, dos pares<br />

submetacéntricos y cinco pares metacéntricos. Se determinaron variaciones en la<br />

morfología de los cromosomas, pero uniformidad en el número cromosómico. La<br />

información disponible indica la necesidad de estudios para describir los cariotipos de<br />

C. manu y C. monohernandezi.<br />

1<br />

Museo de Zoología “Alfonso L. Herrera”, Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad<br />

Nacional Autónoma de México, Coyoacan 04510 México. E-mail: elkalexno@gmail.com (EAN-U)<br />

2<br />

Asociación GAICA. Pasto, Nariño, Colombia. E-mail: silvimomu@gmail.com (SM-M)<br />

*Corresponding author

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